Cross-listings

gr-qc/0608066 [abs, ps, pdf, other] :: Title: Magnetized black hole as a gravitational lens
Authors: R. A. Konoplya
Comments: 5 pages, 2 figures

We use the Ernst-Schwarzschild solution for a black hole immersed in a uniform magnetic field to estimate corrections to the bending angle and time delay due-to precence of weak magnetic fields in galaxies and between galaxie, and also due-to influence of strong magnetic field near supermassive black holes. The magnetic field creates a kind of confinemet in space, that leads to increasing of the bending angle and time delay for a ray of light propagating in the equatorial plane.
gr-qc/0610082 [abs, ps, pdf, other] :: Title: Particle motion around magnetized black holes: Preston-Poisson space-time
Authors: R. A. Konoplya
Comments: 6 pages, RevTex

We analyze motion of massless and massive particles around black holes immersed in an asymptotically uniform magnetic field and surrounded by some mechanical structure, which provides the magnetic field. The space-time is described by Preston-Poisson metric, which is the generalization of the well-known Ernst metric with a new parameter, tidal force, characterizing the surrounding structure. The Hamilton-Jacoby equations allow separation of variables in the equatorial plane. The presence of tidal force from surroundings considerably changes parameters of the test particle motion: it increases the radius of circular orbits of particles, increases the binding energy of massive particles going from a given circular orbits to the innermost stable orbit near black hole. In addition, it increases the distance of minimal approach, time delay and bending angle for a ray of light propagating near black hole.
hep-th/0610205 [abs, ps, pdf, other] :: Title: A non inflationary model with scale invariant cosmological perturbations
Authors: Patrick Peter (IAP - France), E. J. C. Pinho, Nelson Pinto-Neto (CBPF - Brazil)
Comments: 9 pages, 4 figures

We show that a contracting universe which bounces due to quantum cosmological effects and connects to the hot big-bang expansion phase, can produce an almost scale invariant spectrum of perturbations provided the perturbations are produced during an almost matter dominated era in the contraction phase. This is achieved using Bohmian solutions of the canonical Wheeler-de Witt equation, thus treating both the background and the perturbations in a fully quantum manner. We find a very slightly blue spectrum ($n_{_\mathrm{S}}-1>0$). Taking into account the spectral index constraint as well as the CMB normalization measure yields an equation of state that should be less than $\omega\lesssim 8\times 10^{-4}$, implying $n_{_\mathrm{S}}-1 \sim \mathcal{O}(10^{-4})$, and that the characteristic size of the Universe at the bounce is $L_0 \sim 10^3 \ell_\mathrm{Planck}$, a region where one expects that the Wheeler-DeWitt equation should be valid without being spoiled by string or loop quantum gravity effects.

Replacements

astro-ph/0310317 [abs, ps, pdf, other] :: Title: An ISOCAM survey through gravitationally lensing galaxy clusters. IV. Luminous infrared galaxies in Cl 0024+1654 and the dynamical status of clusters
Authors: D. Coia, B. McBreen, L. Metcalfe, A. Biviano, B. Altieri, S. Ott, B. Fort, J.-P. Kneib, Y. Mellier, M.-A. Miville-Deschenes, B. O'Halloran, C. Sanchez-Fernandez
Comments: 17 pages, 9 figures, A&A accepted, source list altered from first version, references added, last section modified, full paper with high-resolution figures available at this this http URL Typo added
Journal-ref: Astron.Astrophys. 431 (2005) 433-449
Note: replaced with revised version Fri, 20 Oct 2006 13:46:20 GMT (377kb)
astro-ph/0410019 [abs, ps, pdf, other] :: Title: An ISOCAM survey through gravitationally lensing galaxy clusters. III. New results from mid-infrared observations of th e cluster Abell 2219
Authors: D. Coia, L. Metcalfe, B. McBreen, A. Biviano, I. Smail, B. Altieri, J.-P. Kneib, S. McBreen, C. Sanchez-Fernandez, B. O'Halloran
Comments: 8 pages, 4 figures, A&A accepted, full paper with high-resolution figures available at this http URL Reference added
Journal-ref: Astron.Astrophys. 430 (2005) 59-66
Note: replaced with revised version Fri, 20 Oct 2006 13:51:28 GMT (195kb)
astro-ph/0508167 [abs, ps, pdf, other] :: Title: Determining the Properties and Evolution of Red Galaxies from the Quasar Luminosity Function
Authors: Philip F. Hopkins (1), Lars Hernquist (1), Thomas J. Cox (1), Brant Robertson (1), Volker Springel (2) ((1) Harvard-Smithsonian Center for Astrophysics, (2) MPA Garching)
Comments: 28 pages, 22 figures, matches version accepted to ApJ
Journal-ref: Astrophys.J.Suppl. 163 (2006) 50-79
Note: replaced with revised version Fri, 20 Oct 2006 04:54:47 GMT (338kb)
astro-ph/0510369 [abs, ps, pdf, other] :: Title: How Much Mass do Supermassive Black Holes Eat in their Old Age?
Authors: Philip F. Hopkins, Ramesh Narayan, Lars Hernquist (Harvard-Smithsonian Center for Astrophysics)
Comments: 11 pages, 4 figures, matches version accepted to ApJ
Journal-ref: Astrophys.J. 643 (2006) 641-651
Note: replaced with revised version Fri, 20 Oct 2006 05:04:16 GMT (47kb)
astro-ph/0602290 [abs, ps, pdf, other] :: Title: The Relation Between Quasar and Merging Galaxy Luminosity Functions and the Merger-Induced Star Formation Rate of the Universe
Authors: Philip F. Hopkins (1), Rachel S. Somerville (2), Lars Hernquist (1), Thomas J. Cox (1), Brant Robertson (1), Yuexing Li (1) ((1) Harvard/CfA, (2) MPIA)
Comments: 26 pages, 15 figures, matches version accepted to ApJ
Note: replaced with revised version Fri, 20 Oct 2006 04:24:58 GMT (205kb)
astro-ph/0603091 [abs, ps, pdf, other] :: Title: The Hubble flow around the CenA / M83 galaxy complex
Authors: Igor D Karachentsev, R Brent Tully, A Dolphin, M Sharina, L Makarova, D Makarov, O G Kashibadze, V Karachentseva, S Sakai, E J Shaya, L Rizzi
Comments: 31 pages including 9 figures and 3 tables. Accepted for publication in Astronomical Journal, 133, N0. 2 (February), 2007
Note: replaced with revised version Fri, 20 Oct 2006 04:33:01 GMT (1105kb)
astro-ph/0605045 [abs, ps, pdf, other] :: Title: Natural Downsizing in Hierarchical Galaxy Formation
Authors: Eyal Neistein, Frank C. van den Bosch, Avishai Dekel
Comments: 16 pages, 16 figures; published in MNRAS; minor changes from first version
Journal-ref: Mon.Not.Roy.Astron.Soc. 372 (2006) 933-948
Note: replaced with revised version Fri, 20 Oct 2006 10:16:35 GMT (104kb)
astro-ph/0606171 [abs, ps, pdf, other] :: Title: Constraining double component dark energy model using type Ia supernovae data
Authors: Fabrício Casarejos, J.C. Fabris, S.V.B. Gonçalves, Jaime F. Villas da Rocha
Comments: Latex file, 11 pages, 24 eps figures, changed content and added references
Note: replaced with revised version Fri, 20 Oct 2006 17:40:24 GMT (689kb)
astro-ph/0607485 [abs, ps, pdf, other] :: Title: Low energy bounds on Poincare violation in causal set theory
Authors: Nemanja Kaloper, David Mattingly
Comments: Additional discussion about behavior of alpha particles in nuclei added. Version matches that accepted in PRD
Note: replaced with revised version Fri, 20 Oct 2006 19:47:14 GMT (19kb)
astro-ph/0607666 [abs, ps, pdf, other] :: Title: Spin-Kick Correlation in Neutron Stars: Alignment Conditions and Implications
Authors: Chen Wang, Dong Lai, JinLin Han
Comments: 17 pages, 8 figures. Accepted by ApJ
Note: replaced with revised version Fri, 20 Oct 2006 16:09:19 GMT (68kb)
astro-ph/0608275 [abs, ps, pdf, other] :: Title: Spin-orbit interactions in black-hole binaries
Authors: M. Campanelli, C. O. Lousto, Y. Zlochower
Comments: Accepted for publication in PRD. 12 pages, revtex4. Typos in equations fixed
Journal-ref: Phys. Rev. D 74, 084023 (2006)
Note: replaced with revised version Fri, 20 Oct 2006 17:06:37 GMT (71kb)
astro-ph/0608297 [abs, ps, pdf, other] :: Title: Dense, Fe-rich Ejecta in Supernova Remnants DEM L238 and DEM L249: A New Class of Type Ia Supernova?
Authors: K. J. Borkowski, S. P. Hendrick, S. P. Reynolds
Comments: 24 pages, 8 figures, ApJ, in press
Note: replaced with revised version Fri, 20 Oct 2006 12:16:11 GMT (561kb)
astro-ph/0608664 [abs, ps, pdf, other] :: Title: The Luminosity Function of high-redshift QSOs - A combined analysis of GOODS and SDSS
Authors: F. Fontanot, S. Cristiani, P. Monaco, M. Nonino, E. Vanzella, W.N. Brandt, A. Grazian, J. Mao
Comments: 17 pages, 13 ps figures, A&A accepted. Updated to journal version
Note: replaced with revised version Fri, 20 Oct 2006 12:43:58 GMT (708kb)
astro-ph/0610448 [abs, ps, pdf, other] :: Title: Double neutron stars as double strange stars
Authors: Manjari Bagchi, Sushan Konar, Gour Bhattacharya, Mira Dey, Jishnu Dey
Comments: 4 pages, 1 figure
Note: replaced with revised version Fri, 20 Oct 2006 11:33:58 GMT (21kb)
astro-ph/0610461 [abs, ps, pdf, other] :: Title: Revisiting the soft X-ray excess emission in clusters of galaxies observed with XMM-Newton
Authors: J. Nevalainen, M. Bonamente, J. Kaastra
Comments: ApJ in press, minor stylistic changes
Note: replaced with revised version Thu, 19 Oct 2006 20:30:52 GMT (107kb)
astro-ph/0610592 [abs, ps, pdf, other] :: Title: High-resolution ultraviolet spectroscopy of PG1159-035 with HST and FUSE
Authors: D. Jahn, T. Rauch, E. Reiff, K. Werner, J.W. Kruk, F. Herwig
Comments: A&A accepted, 13 pages, 10 figures
Note: replaced with revised version Fri, 20 Oct 2006 05:22:42 GMT (648kb)
hep-th/0607092 [abs, ps, pdf, other] :: Title: Quantum Energies of Strings in a 2+1 Dimensional Gauge Theory
Authors: N. Graham, M. Quandt, O. Schroeder, H. Weigel
Comments: 26 pages, 20 eps-files combined to 8 figures, minor typos corrected. Version to be published in Nucl. Phys. B
Note: replaced with revised version Fri, 20 Oct 2006 16:21:47 GMT (292kb)
hep-th/0608071 [abs, ps, pdf, other] :: Title: Global topological k-defects
Authors: E. Babichev
Comments: 7 pages, 3 figures; v2: references added, matches the published version
Journal-ref: Phys.Rev. D74 (2006) 085004
Note: replaced with revised version Fri, 20 Oct 2006 08:21:20 GMT (166kb)

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hep-th/0610202 [abs, ps, pdf, other] :: Title: On First Order Generalized Maxwell Equations
Authors: S. I. Kruglov
Comments: 10 pages
Subj-class: High Energy Physics - Theory; Mathematical Physics

The generalized Maxwell equations including an additional scalar field are considered in the first order formalism. The gauge invariance of the Lagrangian and equations is broken resulting the appearance of a scalar field. We find the canonical and symmetric energy momentum tensors. It is shown that the trace of the symmetric energy-momentum tensor is not equal to zero in the theory considered. The matrix Hamilton form of equations is obtained after the exclusion of the non-dynamical components. The canonical quantization is performed and the propagator of the fields was found in the first order formalism.

Replacements

astro-ph/0605084 [abs, ps, pdf, other] :: Title: The ring statistics - how to separate E- and B-modes of cosmic shear correlation functions on a finite interval
Authors: Peter Schneider, Martin Kilbinger (Argelander-Institut fuer Astronomie, Universitaet Bonn)
Comments: 10 pages, 5 figues, minor changes, matches the published version (A&A in press)
Note: replaced with revised version Sat, 21 Oct 2006 11:58:31 GMT (90kb)
astro-ph/0606073 [abs, pdf] :: Title: Cold dark matter cosmology conflicts with fluid mechanics and observations
Authors: Carl H. Gibson (Univ. of Calif. at San Diego)
Comments: 7 pages, 5 figures, J. Applied Fluid Mech. format
Note: replaced with revised version Mon, 23 Oct 2006 17:48:13 GMT (937kb)
astro-ph/0607055 [abs, ps, pdf, other] :: Title: Gamma Ray Burst Constraints on Ultraviolet Lorentz Invariance Violation
Authors: Tina Kahniashvili (1,2), Grigol Gogoberidze (2), Bharat Ratra (1) ((1) Kansas State University, USA, (2) National Abastumani Astrophysical Observatory, Georgia)
Comments: 5 pages, references added, accepted for publication in Phys. Lett. B
Note: replaced with revised version Fri, 20 Oct 2006 20:50:53 GMT (10kb)
astro-ph/0607459 [abs, ps, pdf, other] :: Title: Proper Motion of Pulsar B1800-21
Authors: W. F. Brisken, M. Carrillo-Barragan, S. Kurtz, J. P. Finley
Comments: 13 pages, 1 color figure. Replaced with version accepted for publication in Astrophysical Journal
Note: replaced with revised version Fri, 20 Oct 2006 22:43:50 GMT (240kb)
astro-ph/0608085 [abs, ps, pdf, other] :: Title: The intergalactic propagation of ultra-high energy cosmic ray nuclei
Authors: Dan Hooper (Fermilab), Subir Sarkar (Oxford), Andrew M. Taylor (Oxford)
Comments: 19 pages, 51 figures; accepted for publication in Astroparticle Physics (with minor revisions)
Note: replaced with revised version Mon, 23 Oct 2006 16:56:05 GMT (62kb)
astro-ph/0608313 [abs, pdf] :: Title: No supernovae from two nearby long gamma ray bursts
Authors: Johan P. U. Fynbo, Darach Watson, Christina C. Thoene, Jesper Sollerman, Joshua S. Bloom, Tamara M. Davis, Jens Hjorth, Pall Jakobsson, Uffe G. Joergensen, John F. Graham, Andrew S. Fruchter, David Bersier, Lisa Kewley, Arnaud Cassan, José María Castro Cerón, Suzanne Foley, Javier Gorosabel, Tobias C. Hinse, Keith D. Horne, Brian L. Jensen, Sylvio Klose, Daniel Kocevski, Jean-Baptiste Marquette, Daniel Perley, Enrico Ramirez-Ruiz, Maximilian D. Stritzinger, Paul Vreeswijk, Ralph A. M. Wijers, Kristian G. Woller, Dong Xu, Marta Zub
Comments: Submitted to Nature on July 7. Posted on Nature website July 12. Revised on August 10 and accepted October 20 (with more data and text updated based on referee and editor feedback)
Note: replaced with revised version Mon, 23 Oct 2006 13:45:53 GMT (524kb)
astro-ph/0608404 [abs, ps, pdf, other] :: Title: An unusual precursor burst with oscillations from SAX J1808.4-3658
Authors: Sudip Bhattacharyya (NASA/GSFC, UMCP), Tod E. Strohmayer (NASA/GSFC)
Comments: 10 pages, 4 figures, accepted for publication in ApJ
Note: replaced with revised version Fri, 20 Oct 2006 21:51:18 GMT (54kb)
astro-ph/0608581 [abs, ps, pdf, other] :: Title: ESO Imaging survey: Optical Deep Public Survey
Authors: A. Mignano, J.M. Miralles, L. da Costa, L. F. Olsen, I. Prandoni, S. Arnouts, C. Benoist, R. Madejsky, R. Slijkhuis, S. Zaggia
Comments: 24 pages, 26 figures. Accepted for pubblication in A&A
Note: replaced with revised version Mon, 23 Oct 2006 14:35:33 GMT (827kb)
astro-ph/0609419 [abs, ps, pdf, other] :: Title: Discovery of the brightest T dwarf in the northern hemisphere
Authors: Etienne Artigau (1 and 2), Rene Doyon (1), David Lafreniere (1), Daniel Nadeau (1), Jasmin Robert (1), Loic Albert (3) ((1) Universite de Montreal, (2) Gemini Observatory Southern Operations Center, (3) Canada-France-Hawaii Telescope Corporation)
Comments: 4 pages, 3 figures, To be published in November 1, 2006 issue of ApJL. Following IAU recommendation, the survey acronym (IBIS) was changed to SIMP
Note: replaced with revised version Sat, 21 Oct 2006 14:58:41 GMT (111kb)
astro-ph/0609767 [abs, ps, pdf, other] :: Title: Simplified solution to determination of a binary orbit
Authors: Hideki Asada, Toshio Akasaka, Kazuya Kudoh
Comments: 15 pages; text improved, a reference added
Note: replaced with revised version Mon, 23 Oct 2006 02:14:09 GMT (33kb)
astro-ph/0609769 [abs, ps, pdf, other] :: Title: An exact solution to determination of an open orbit
Authors: Hideki Asada
Comments: 28 pages, text improved, references added; version accepted by Celestial Mech
Note: replaced with revised version Mon, 23 Oct 2006 02:30:24 GMT (12kb)
astro-ph/0610004 [abs, ps, pdf, other] :: Title: Discovery of a Candidate Central Compact Object in the Galactic Nonthermal SNR G330.2+1.0
Authors: Sangwook Park (Penn State), Koji Mori (Miyazaki), Oleg Kargaltsev (Penn State), Patrick O. Slane (CfA), John P. Hughes (Rutgers), David N. Burrows, Gordon P. Garmire, George G. Pavlov (Penn State)
Comments: 9 pages (AASTex preprint style) including 1 Table and 4 Figures. Accepted by ApJ Letters
Note: replaced with revised version Mon, 23 Oct 2006 14:49:34 GMT (131kb)
astro-ph/0610026 [abs, ps, pdf, other] :: Title: Reconstructing Dark Energy
Authors: Varun Sahni, Alexei Starobinsky
Comments: 28 pages, 7 figures; Invited review for the special issue of Int. J. Mod. Phys. devoted to dark energy and dark matter, IJMP style. Additional references, more discussion
Note: replaced with revised version Mon, 23 Oct 2006 15:01:20 GMT (95kb)
astro-ph/0610209 [abs, ps, pdf, other] :: Title: Rethinking the N(H2)/I(CO) Conversion Factor
Authors: W. F. Wall
Comments: A very short and incomplete version of this appears in RMAA, 42, 117. Given that is a first draft, comments are appreciated. This first draft was updated - I removed an unnecessary warning on the first page
Note: replaced with revised version Fri, 20 Oct 2006 21:18:39 GMT (228kb)
astro-ph/0610389 [abs, ps, pdf, other] :: Title: Running of Running of the Spectral Index and WMAP Three-year data
Authors: Qing-Guo Huang
Comments: 15 pages, 4 figures; references and one figure are added, version for publication in JCAP
Note: replaced with revised version Sat, 21 Oct 2006 17:18:49 GMT (89kb)
astro-ph/0610401 [abs, ps, pdf, other] :: Title: Correlation between the spatial distribution of the circumstellar disks and the massive stars in the open cluster NGC 6611. Compiled catalog and cluster parameters
Authors: M.G. Guarcello, L. Prisinzano, G. Micela, F. Damiani, G. Peres, S. Sciortino
Comments: 16 pages, 14 figures (high quality figures available at: "this http URL". Accepted for publication in A&A
Note: replaced with revised version Mon, 23 Oct 2006 10:30:30 GMT (936kb)
astro-ph/0610604 [abs, ps, pdf, other] :: Title: The Difficulty of the Heating of Cluster Cooling Flows by Sound Waves and Weak Shocks
Authors: Yutaka Fujita (Osaka U.) Takeru Ken Suzuki (U. of Tokyo)
Comments: 6 pages. To appear in the Proceedings of "Heating vs. Cooling in Galaxies and Clusters of Galaxies", August 2006, Garching (Germany)
Note: replaced with revised version Mon, 23 Oct 2006 00:07:17 GMT (51kb)
gr-qc/0511136 [abs, ps, pdf, other] :: Title: Binary neutron stars: Equilibrium models beyond spatial conformal flatness
Authors: Koji Uryu, Francois Limousin, John L. Friedman, Eric Gourgoulhon, Masaru Shibata
Comments: 4 pages, 6 figures, revised version, PRL in press
Note: replaced with revised version Sat, 21 Oct 2006 16:13:04 GMT (55kb)
hep-ph/0608104 [abs, ps, pdf, other] :: Title: Baryogenesis, Dark Matter and the Pentagon
Authors: T. Banks, S. Echols, J.L. Jones
Comments: JHEP3 LaTeX, 15 pages. New version corrects errors in the electroweak baryon violating and matter radiation temperatures, which were pointed out by the referee. Substantial quantitative but no qualitative change to our conclusions
Note: replaced with revised version Sat, 21 Oct 2006 02:34:53 GMT (32kb)
hep-th/0605266 [abs, ps, pdf, other] :: Title: Domain walls, near-BPS bubbles, and probabilities in the landscape
Authors: Anna Ceresole, Gianguido Dall'Agata, Alexander Giryavets, Renata Kallosh, Andrei Linde
Comments: 51 pages. 14 figures. Minor changes in Sect. 6; a version to appear in Phys. Rev. D
Note: replaced with revised version Sat, 21 Oct 2006 01:28:04 GMT (337kb)

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gr-qc/0603128 [abs, ps, pdf, other] :: Title: Gravitational lensing due to dark matter modelled by vector field
Authors: V.V.Kiselev, D.I.Yudin
Comments: 17 pages, LaTeX iopart class, 10 eps figures; explanaitions and discussion are extended and improved, reference added; version to appear in Classical and Quantum Gravity

The specified constant 4-vector field reproducing the spherically symmetric stationary metric of cold dark matter halo in the region of flat rotation curves results in a constant angle of light deflection at small impact distances. The effective deflecting mass is factor $\pi/2$ greater than the dark matter mass. The perturbation of deflection picture due to the halo edge is evaluated.
gr-qc/0605037 [abs, ps, pdf, other] :: Title: Doppler Effects from Bending of Light Rays in Curved Space-Times
Authors: Matteo Luca Ruggiero, Angelo Tartaglia, Lorenzo Iorio
Comments: 16 pages, 2 EPS figures; to appear in the International Journal of Modern Physics D
Journal-ref: International Journal of Modern Physics D, Vol. 15, No. 8 (2006) 1183-1198

We study Doppler effects in curved space-time, i.e. the frequency shifts induced on electromagnetic signals propagating in the gravitational field. In particular, we focus on the frequency shift due to the bending of light rays in weak gravitational fields. We consider, using the PPN formalism, the gravitational field of an axially symmetric distribution of mass. The zeroth order, i.e. the sphere, is studied then passing to the contribution of the quadrupole moment, and finally to the case of a rotating source. We give numerical estimates for situations of physical interest, and by a very preliminary analysis, we argue that analyzing the Doppler effect could lead, in principle, in the foreseeable future, to the measurement of the quadrupole moment of the giant planets of the Solar System.
gr-qc/0610104 [abs, ps, pdf, other] :: Title: Chaplygin Gas Cosmology - Unification of Dark Matter and Dark Energy
Authors: Neven Bilic, Gary B. Tupper, Raoul D. Viollier
Comments: 6 pages, presented by N. Bilic at IRGAC 2006, Barcelona, 11-15 July 2006

The models that unify dark matter and dark energy based upon the Chaplygin gas fail owing to the suppression of structure formation by the adiabatic speed of sound. Including string theory effects, in particular the Kalb-Ramond field, we show how nonadiabatic perturbations allow a successful structure formation.
hep-th/0610231 [abs, ps, pdf, other] :: Title: Does string theory predict an open universe?
Authors: R. Buniy, S. Hsu, A. Zee
Comments: 3 pages, 1 figure, revtex

It has been claimed that the string landscape predicts an open universe, with negative curvature. The prediction is a consequence of a large number of metastable string vacua, and the properties of the Coleman--De Luccia instanton which describes vacuum tunneling. We examine the robustness of this claim, which is of particular importance since it seems to be string theory's sole claim to falsifiability. We find that, due to subleading tunneling processes, the prediction is sensitive to unknown properties of the landscape. Under plausible assumptions, universes like ours are as likely to be closed as open.
hep-th/0610232 [abs, ps, pdf, other] :: Title: Generating the curvature perturbation with instant preheating
Authors: Tomohiro Matsuda
Comments: 17 pages, 1 figure

A new mechanism for generating the curvature perturbation at the end of inflaton has been investigated. The dominant contribution to the primordial curvature perturbation may be generated during the period of instant preheating. The mechanism converts isocurvature perturbation related to a light field into curvature perturbation, where the "light field" is not the inflaton field. This mechanism is important in inflationary models where kinetic energy is significant at the end of inflaton. We show how one can apply this mechanism to various brane inflationary models.
hep-th/0610235 [abs, ps, pdf, other] :: Title: The Inflationary Trispectrum for Models with Large Non-Gaussianities
Authors: Min-xin Huang, Gary Shiu
Comments: 4 pages

We compute the leading order contribution to the four-point function of the primordial curvature perturbation in a class of single field models where the inflationary Lagrangian is a general function of the inflaton and its first derivative. This class of models includes string motivated inflationary models such as DBI inflation. We find that the trispectrum for some range of parameters could potentially be observed in future experiments. Moreover, the trispectrum can distinguish DBI inflation from other inflation models with large non-Gaussianities which typically have a similar bispectrum. We also derive a set of consistency conditions for n-point functions of the primordial curvature perturbation in single field inflation, generalizing Maldacena's result for 3-point functions.
hep-th/0610244 [abs, ps, pdf, other] :: Title: Self-T-Dual Brane Cosmology
Authors: Massimiliano Rinaldi
Comments: 3 pages, based on a talk given at the XI Marcel Grossmann Meeting, Berlin 23-29 July, 2006

We show how T-duality can be implemented with brane cosmology. As a result, we obtain a smooth bouncing cosmology with features similar to the ones of the pre-Big Bang scenario. Also, by allowing T-duality transformations along the time-like direction, we find a static solution that displays an interesting self tuning property.

Replacements

astro-ph/0511275 [abs, ps, pdf, other] :: Title: Collective Neutrino Flavor Transformation In Supernovae
Authors: Huaiyu Duan (UCSD), George M. Fuller (UCSD), Yong-Zhong Qian (UMN)
Comments: 17 pages, 5 figures. Revised for better presentation
Note: replaced with revised version Tue, 24 Oct 2006 00:01:09 GMT (190kb)
astro-ph/0601063 [abs, ps, pdf, other] :: Title: On the origins of part-time radio pulsars
Authors: Bing Zhang (UNLV), Janusz Gil (Zielona Gora Univ), Jaroslaw Dyks (Nicolaus Copernicus Center)
Comments: Expanded version to include more general discussion of part-time pulsars. Accepted to MNRAS
Note: replaced with revised version Mon, 23 Oct 2006 21:15:34 GMT (12kb)
astro-ph/0605268 [abs, ps, pdf, other] :: Title: Remarks on Rapid vs. Slow Star Formation
Authors: Javier Ballesteros-Paredes (CRyA-UNAM), Lee Hartmann (University of Michigan)
Comments: 15 pages, 2 tables. Includes one schematic figure illustrating why the star formation period cannot be a small fraction of the cloud lifetime. Accepted by Revista Mexicana de Astronomia y Astrofisica. Requieres rmaa.cls file (includded)
Note: replaced with revised version Mon, 23 Oct 2006 23:59:03 GMT (48kb)
astro-ph/0605548 [abs, ps, pdf, other] :: Title: Imprint of Gravitational Lensing by Population III Stars in Gamma Ray Burst Light Curves
Authors: Y. Hirose, M. Umemura, A. Yonehara, J. Sato
Comments: 13 pages, 13 figures, accepted for publication in ApJ
Journal-ref: Astrophys.J. 650 (2006) 252-260
Note: replaced with revised version Tue, 24 Oct 2006 03:51:55 GMT (151kb)
astro-ph/0606415 [abs, ps, pdf, other] :: Title: The alignment of dark matter halos with the cosmic web
Authors: Santiago G. Patiri, Antonio J. Cuesta, Francisco Prada, Juan Betancort-Rijo, Anatoly Klypin
Comments: 4 pages, 1 figure, accepted for publication in ApJ Letters
Note: replaced with revised version Mon, 23 Oct 2006 23:13:39 GMT (25kb)
astro-ph/0606675 [abs, ps, pdf, other] :: Title: Constraints on the Accretion History of Massive Black Holes from Faint X-ray Counts
Authors: Marta Volonteri, Ruben Salvaterra, Francesco Haardt
Comments: MNRAS in press, 7 pages, 8 figures
Note: replaced with revised version Tue, 24 Oct 2006 17:17:18 GMT (54kb)
astro-ph/0606699 [abs, ps, pdf, other] :: Title: The Clustering of Massive Halos
Authors: Andrew R. Wetzel, J. D. Cohn, Martin White, Daniel E. Holz, Michael S. Warren
Comments: 10 pages, 8 figures; text improved, references and one figure added; accepted for publication in ApJ
Note: replaced with revised version Tue, 24 Oct 2006 18:25:33 GMT (66kb)
astro-ph/0607148 [abs, ps, pdf, other] :: Title: Implications of the consistency of the peculiar GRBs 060218 and 060614 with the Ep,i - Eiso correlation
Authors: L. Amati, M. Della Valle, F. Frontera, D. Malesani, C. Guidorzi, E. Montanari, E. Pian
Comments: 9 pages, 3 figures, REVISED VERSION (added analysis of GRB060614 and other two possible "no-hypernova" GRBs, extended discussion, added Figure 3), submitted to A&A on October, 2 2006
Note: replaced with revised version Tue, 24 Oct 2006 11:50:50 GMT (42kb)
astro-ph/0609152 [abs, ps, pdf, other] :: Title: Observations of Extragalactic Sources with the MAGIC Telescope
Authors: D. Mazin (for the MAGIC collaboration)
Comments: to appear in proceedings of Multi Messenger conference, Barcelona, July 4-7, 2006
Note: replaced with revised version Tue, 24 Oct 2006 11:34:58 GMT (1579kb)
astro-ph/0609220 [abs, ps, pdf, other] :: Title: The radial distribution of blue straggler stars and the nature of their progenitors
Authors: M. Mapelli, S. Sigurdsson, F. R. Ferraro, M. Colpi, A. Possenti, B. Lanzoni
Comments: 9 pages, 5 figures, MNRAS, in press, matches the published version
Note: replaced with revised version Tue, 24 Oct 2006 07:28:58 GMT (44kb)
astro-ph/0610288 [abs, ps, pdf, other] :: Title: On the magnetic field evolution in shell-like supernova remnants
Authors: Branislav Vukotic, Bojan Arbutina, Dejan Urosevic
Comments: Accepted by RevMexAA to be published on April 2007. 11 pages, 1 figure
Note: replaced with revised version Tue, 24 Oct 2006 13:35:39 GMT (46kb)
astro-ph/0610548 [abs, ps, pdf, other] :: Title: Chemically Consistent Evolutionary Synthesis Modelling of Galaxies
Authors: Uta Fritze-von Alvensleben, Thorsten Tepper García
Comments: Matches version from October 19th, 2006, with minor typos corrected
Note: replaced with revised version Tue, 24 Oct 2006 12:29:43 GMT (19kb)
astro-ph/0610658 [abs, pdf] :: Title: A Reflective Gaussian Coronagraph for ExAO: Laboratory Performance
Authors: Ryeojin Park, Laird M. Close, Nick Siegler, Eric L. Nielsen, Thomas Stalcup
Comments: 42 pages, 12 figures, 1 table: accepted by the Publications of the Astronomical Society of the Pacific
Note: replaced with revised version Tue, 24 Oct 2006 19:46:43 GMT (2158kb)
gr-qc/0507022 [abs, ps, pdf, other] :: Title: Some Statistical Mechanical Properties of Photon Black Holes
Authors: X. Hernandez, C. S. Lopez-Monsalvo, S. Mendoza, R. A. Sussman
Comments: 7 pages, 1 figure. Added discussion on relativistic Jeans criterion and a more formal statistical mechanical treatment. Accepted for publication in the Revista Mexicana de Fisica
Note: replaced with revised version Tue, 24 Oct 2006 01:50:17 GMT (19kb)
hep-th/0604075 [abs, ps, pdf, other] :: Title: Escaping from the black hole?
Authors: E. Babichev, V. Mukhanov, A. Vikman
Comments: 4 pages, 2 figures, published version
Journal-ref: JHEP 0609 (2006) 061
Note: replaced with revised version Mon, 23 Oct 2006 20:34:03 GMT (19kb)

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Cross-listings

gr-qc/0409086 [abs, ps, pdf, other] :: Title: Non-violation of Energy Conditions in the future accelerated universe due to quantum effects
Authors: S.K.Srivastava
Comments: 11pages. To appear in Int. J. Theo. Phys

Here, an accelerated phantom model for the late universe is explored, which is free from future singularity. It is interseting to see that this model exhibits strong curvature for all time in future, unlike models with `big-rip singularity' showing high curvature near singularity time only. So, quantum gravity effects grow dominant as time increases in the late universe too. More importantly, it is demonstrated that that quantum corrections to FRW equations lead to non-violation of `cosmic energy conditions' of general relativity, which are violated for accelerating universe without these corrections.
gr-qc/0610103 [abs, ps, pdf, other] :: Title: Collapse and black hole formation in magnetized, differentially rotating neutron stars
Authors: Branson C. Stephens, Matthew D. Duez, Yuk Tung Liu, Stuart L. Shapiro, Masaru Shibata
Comments: Submitted to a special issue of Classical and Quantum Gravity based around the New Frontiers in Numerical Relativity meeting at the Albert Einstein Institute, Potsdam, July 17-21, 2006

The capacity to model magnetohydrodynamical (MHD) flows in dynamical, strongly curved spacetimes significantly extends the reach of numerical relativity in addressing many problems at the forefront of theoretical astrophysics. We have developed and tested an evolution code for the coupled Einstein-Maxwell-MHD equations which combines a BSSN solver with a high resolution shock capturing scheme. As one application, we evolve magnetized, differentially rotating neutron stars under the influence of a small seed magnetic field. Of particular significance is the behavior found for hypermassive neutron stars (HMNSs), which have rest masses greater the mass limit allowed by uniform rotation for a given equation of state. The remnant of a binary neutron star merger is likely to be a HMNS. We find that magnetic braking and the magnetorotational instability lead to the collapse of HMNSs and the formation of rotating black holes surrounded by massive, hot accretion tori and collimated magnetic field lines. Such tori radiate strongly in neutrinos, and the resulting neutrino-antineutrino annihilation (possibly in concert with energy extraction by MHD effects) could provide enough energy to power short-hard gamma-ray bursts. To explore the range of outcomes, we also evolve differentially rotating neutron stars with lower masses and angular momenta than the HMNS models. Instead of collapsing, the non-hypermassive models form nearly uniformly rotating central objects which, in cases with significant angular momentum, are surrounded by massive tori.
hep-ph/0610216 [abs, ps, pdf, other] :: Title: Bounds on length scales of classical spacetime-foam models
Authors: S. Bernadotte, F.R. Klinkhamer
Comments: 20 pages with revtex4, v2: expanded version

We consider simple models of a classical spacetime foam with identical static defects embedded in Minkowski spacetime. Plane-wave solutions of the vacuum Maxwell equations with appropriate boundary conditions at the defect surfaces are obtained in the long-wavelength limit. The corresponding photon dispersion relations are calculated. In particular, we determine the coefficients of the quadratic and quartic terms in the photon dispersion relation \omega^2=\omega^2(\vec{k}), for angular frequency \omega and wave vector \vec{k}. Astrophysical observations of gamma-ray bursts and ultra-high-energy cosmic rays then place bounds on the coefficients of the dispersion relations and, thereby, on particular combinations of the length scales from the static spacetime-foam models considered. Spacetime foam models with a single length scale are excluded, even models with a length scale close to the Planck scale (as long as a classical spacetime manifold remains relevant).
hep-th/0610188 [abs, ps, pdf, other] :: Title: Cosmologies with General Non-Linear Scalar Field
Authors: Wei Fang, H.Q.Lu, Z.G.Huang
Comments: 9 pages, one figure added, typo corrected, LaTeX

We generally investigate the scalar field model with the lagrangian $L=F(X)-V(\phi)$, which we call it {\it General Non-Linear Scalar Field Model}. We find that it is the square potential(with a negative minimum) that drives the usual linear field solution($\phi=\phi_0t$) while in K-essence model(with the lagrangian $L=-V(\phi)F(X)$) the potential should be taken as a inverse square form, and their cosmological evolution are all different. Moreover we find that this usual linear field solution model is isomorphic with one special case of our model where its sound speed diverges. Our model with a constant potential is actually equivalent to the K-essence model also with a constant potential. With a simple form of $F(X)=1-\sqrt{1-2X}$ we indicate that our model can be also considered as a unified model of dark matter and dark energy. Finally we study the case when the baryotropic index $\gamma$ is constant. It shows that, unlike the K-essence, the detailed form of $F(X)$ depends on the potential. When the potential is constant We find the exact solution for $F(X)$.

Replacements

astro-ph/0512235 [abs, ps, pdf, other] :: Title: Formation of early-type galaxies from cosmological initial conditions
Authors: Thorsten Naab, Peter H. Johansson, George Efstathiou, Jeremiah P. Ostriker
Comments: significantly extended version, revised, submitted to ApJ
Note: replaced with revised version Wed, 25 Oct 2006 19:13:01 GMT (439kb)
astro-ph/0605636 [abs, ps, pdf, other] :: Title: Halo assembly bias and its effects on galaxy clustering
Authors: Darren J. Croton, Liang Gao, Simon D. M. White
Comments: 8 pages, 4 figures, accepted for publication in MNRAS
Note: replaced with revised version Tue, 24 Oct 2006 20:01:17 GMT (42kb)
astro-ph/0606206 [abs, ps, pdf, other] :: Title: The Cosmological Evolution of the Average Mass Per Baryon
Authors: Gary Steigman (The Ohio State University)
Comments: 5 pages; no figures; updated references; final version published in JCAP, 10 (2006) 016
Note: replaced with revised version Wed, 25 Oct 2006 15:32:53 GMT (8kb)
astro-ph/0606373 [abs, ps, pdf, other] :: Title: Spherically symmetric solutions of modified field equations in f(R) theories of gravity
Authors: Tuomas Multamaki, Iiro Vilja
Comments: 5 pages, v2: references added, minor modifications
Journal-ref: Phys.Rev. D74 (2006) 064022
Note: replaced with revised version Wed, 25 Oct 2006 08:33:19 GMT (12kb)
astro-ph/0606675 [abs, ps, pdf, other] :: Title: Constraints on the Accretion History of Massive Black Holes from Faint X-ray Counts
Authors: Marta Volonteri, Ruben Salvaterra, Francesco Haardt
Comments: MNRAS in press, 7 pages, 8 figures
Note: replaced with revised version Wed, 25 Oct 2006 15:41:02 GMT (61kb)
astro-ph/0607069 [abs, ps, pdf, other] :: Title: Effects of early dark energy on strong cluster lensing
Authors: C. Fedeli, M. Bartelmann
Comments: 10 pages, 9 figures, accepted for publication on A&A
Note: replaced with revised version Wed, 25 Oct 2006 09:04:09 GMT (126kb)
astro-ph/0608036 [abs, ps, pdf, other] :: Title: First Constraints on Rings in the Pluto System
Authors: A.J. Steffl, S.A. Stern
Comments: 14 pages, including 3 figures and 2 tables
Note: replaced with revised version Wed, 25 Oct 2006 17:17:17 GMT (180kb)
astro-ph/0608042 [abs, ps, pdf, other] :: Title: TeV Astrophysics, A Review
Authors: Wei Cui (Purdue University)
Comments: Invited review, to be published in the proceedings of the Vulcano Workshop 2006 "Frontier Objects in Astrophysics and Particle Physics", F. Giovannelli & G. Mannocchi (eds.), Italian Physical Society, Editrice Compositori, Bologna, Italy. Final version
Note: replaced with revised version Wed, 25 Oct 2006 12:55:10 GMT (27kb)
astro-ph/0608242 [abs, ps, pdf, other] :: Title: Cosmological hydrogen recombination: populations of the high level sub-states
Authors: J. Chluba, J.A. Rubino-Martin, R.A. Sunyaev
Comments: 12 pages, 11 figures, submitted to MNRAS, revised version, included two new figures, Sect. 3.4 added
Note: replaced with revised version Wed, 25 Oct 2006 10:43:51 GMT (640kb)
astro-ph/0610329 [abs, ps, pdf, other] :: Title: Unresolved X-ray background: clues on galactic nuclear activity at z>6
Authors: R. Salvaterra, F. Haardt, M. Volonteri
Comments: 9 pages, 7 figures, MNRAS in press
Note: replaced with revised version Wed, 25 Oct 2006 17:12:03 GMT (40kb)
astro-ph/0610390 [abs, ps, pdf, other] :: Title: Gravitational waves and lensing of the metric theory proposed by Sobouti
Authors: S. Mendoza, Y. M. Rosas-Guevara
Comments: 13 pages, 2 figures. Added a better approximation to the bending angle and its consequences
Note: replaced with revised version Wed, 25 Oct 2006 17:45:59 GMT (26kb)
astro-ph/0610684 [abs, ps, pdf, other] :: Title: Chandra View of the Unidentified TeV Gamma-ray Source HESS J1804-216
Authors: Wei Cui, Alexander Konopelko (Purdue Univ.)
Comments: 14 pages including 4 figures. Accepted by ApJ Letters. Corrected a typo in the value of N_H
Note: replaced with revised version Tue, 24 Oct 2006 21:01:47 GMT (331kb)
astro-ph/0610708 [abs, ps, pdf, other] :: Title: XMM detection of the supernova remnant G337.2+0.1
Authors: Jorge A. Combi, Juan F. Albacete Colombo, Gustavo E. Romero, Paula Benaglia
Comments: 13 pages, 5 figures, Accepted for publication in Astrophysical Journal Letters
Note: replaced with revised version Wed, 25 Oct 2006 17:48:55 GMT (183kb)
hep-ph/0601018 [abs, ps, pdf, other] :: Title: Split Two-Higgs-Doublet Model and Neutrino Condensation
Authors: Fei Wang, Wenyu Wang, Jin Min Yang
Comments: version in Europhys. Lett. (discussions added)
Journal-ref: Europhys.Lett.76(2006)388-394
Note: replaced with revised version Wed, 25 Oct 2006 06:54:37 GMT (9kb)
hep-th/0605045 [abs, ps, pdf, other] :: Title: Observational Signatures and Non-Gaussianities of General Single Field Inflation
Authors: Xingang Chen, Min-xin Huang, Shamit Kachru, Gary Shiu
Comments: 53 pages, 5 figures; v2, discussions added in Sec.6 and App.B, references added
Note: replaced with revised version Wed, 25 Oct 2006 01:49:29 GMT (212kb)
math.SP/0502566 [abs, ps, pdf, other] :: Title: Exact Polynomial Eigenmodes for Homogeneous Spherical 3-Manifolds
Authors: Jeffrey R. Weeks
Comments: v3. Final published version. 27 pages, 1 figure
Subj-class: Spectral Theory; Geometric Topology
MSC-class: 51P05, 85A40, 43A85, 57M60
Journal-ref: Class. Quantum Grav. 23 (2006) 6971-6988
Note: replaced with revised version Wed, 25 Oct 2006 08:34:28 GMT (38kb)

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